Transparent Object reflects Scene lighting when Generating Lights with Realtime Global Illumination on dark closed area

Reproduction steps:
1. Open the attached project "RayTracingTests.zip"
2. Open the "RayTracingTest" Scene
3. Open the Lighting window from Window > Rendering > Lightning
4. Enable the “Realtime Global Illumination” checkbox
5. Press the Generate Lighting button
6. Observe the Scene view

Expected result: Transparent Cube GameObject is dark
Actual result: Transparent Cube GameObject is reflecting the Scene lightning

Reproducible with: 12.0.0 (2021.2.0b12, 2022.1.0a10)
Could not test with: 7.7.1 (2019.4.30f1), 10.6.0 (2020.3.19f1), 11.0.0 (2021.1.22f1) - "Realtime Global Illumination" checkbox is not available